import java.util.Scanner;


public class datasystemexercise
{
	public static void main(String[] args)
	{
		Scanner sc = new Scanner(System.in);
		int num=0;
		num=num+1;
		num=num+2-1;
		num=num+2-1;
		num=num-1;
		num=num+1;
		System.out.println("车上剩余人数："+num);
		System.out.println("由你来规定车上的人数！！");
		
		num = sc.nextInt();
		System.out.println("车上剩余人数："+num);
	}
}